This pack contains 3 size 90/14 needles and 2 size 100/16 metal (metallic) needles. Metallic needles have a large eye (twice as long and four times as wide compared to a Universal needle) which helps reduce stress on delicate metallic threads when stitching. A light ball point helps reduce friction when stitching in dense patterns, such as embroidery. Favorite Uses: The perfect needle assortment for using metallic threads such as Sulky Original Metallic, Sliver and Holoshimmer. The larger eye reduces stress and provides the additional needed room for the metallic threads, resulting in less breakage and smooth stitching.